<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box{
            width: 200px;
            height: 400px;
            background-color: aquamarine;
            word-break: break-all;
        }
    </style>
</head>
<body>
    <div class="box">
        测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试测试
        hello world hello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello worldhello world
        https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V2/ts-container-gridrow-0000001478181425-V2

    </div>
</body>
</html>